Mary Jean M Brewin

Mary Jean M. Brewin serves as a Contracting Officer responsible for managing the acquisition lifecycle for mission-critical services within her federal organization. She plays a pivotal role in ensuring compliance with federal procurement regulations while advancing operational efficiency through strategic sourcing. Her portfolio primarily encompasses service-based contracts under the Federal Acquisition Regulation, with a focus on security systems and facility support services. Brewin exercises full contracting authority, from market research and solicitation development to award administration and contract closeout, ensuring transparency, fairness, and value for taxpayer dollars. Brewin cultivates collaborative relationships with a diverse array of vendors, particularly those specializing in physical security infrastructure and commercial janitorial services. She regularly engages with both large prime contractors and small business subcontractors to deliver integrated, performance-based solutions. Her contracting approach emphasizes clear performance metrics, risk mitigation, and accountability, fostering long-term vendor partnerships grounded in mutual compliance and service excellence. A strong advocate for socioeconomic programs, Brewin consistently prioritizes HUBZone set-asides, allocating half of her acquisitions to qualified small businesses located in historically underutilized business zones. This commitment, paired with an equal distribution of non-set-aside procurements, reflects a balanced strategy that supports economic development in targeted communities while maintaining competitive rigor. Her pattern of set-aside usage demonstrates a deliberate effort to expand opportunities for small businesses with verified geographic and economic eligibility. Her primary procurement focus lies in NAICS 561621 for security systems services—including surveillance, access control, and alarm monitoring—and NAICS 561720 for janitorial and building maintenance services. Brewin’s technical expertise spans the implementation of modern security technologies and the management of facility operations contracts requiring strict adherence to health, safety, and environmental standards. She brings deep domain knowledge in performance-based service contracting, ensuring that deliverables align with agency mission requirements and operational continuity goals.